JP2013073210A - Material presentation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve both functional diversification and interference prevention of wireless transmission in a terminal for use in presentation which is performed while showing audience images captured by a camera.SOLUTION: In a material presentation system 10, data transmission/reception among a material presentation device 20, a tablet 30, and answer clickers 40 per group of a plurality of audiences is wirelessly performed with a transmission/reception unit 29 of the material presentation device 20 as a relay station. The material presentation device 20 receives data wireless transmission from both the tablet 30 and the individual answer clickers 40 in a prescribed data transmission period after transmission of data transmission permission to them. Thereafter the material presentation device 20 transmits transmission permission for a transmission/reception unit 360 of the tablet 30 to the transmission/reception unit 360 with a frequency higher than a transmission frequency of transmission permission to transmission/reception units 430 of the respective answer clickers 40, whereby accumulation of the period of data transmission from the tablet 30 to the material presentation device 20 is increased.

Description

  The present invention relates to a material presentation system that presents a captured image obtained by capturing a material with a camera to the audience while asking the audience's reaction.

  2. Description of the Related Art In recent years, a method for supporting learning or a lecture while presenting an image to an audience such as a student or a participant in a class or a lecture has been proposed (for example, Patent Document 1). In classes and workshops, a captured image obtained by capturing a document with a camera is often presented to the audience (for example, Patent Document 2).

JP 2002-351434 A JP 2007-25352 A JP 2010-245690 A

  In the support methods proposed in Patent Documents 1 and 2 above, remote controllers are prepared for both the questioner and the lecturer who are audiences, and the convenience when the questioner asks questions is enhanced. In patent document 3, the captured image of a camera can be shown to an audience. For this reason, if both technologies are combined, it is possible to support audience learning and training while presenting a captured image obtained by capturing a document with a camera to the audience.

  By the way, for example, in a class involving a class or a knowledge professor in a school, the knowledge and understanding of the audience students and participants are not necessarily uniform, so the questioning teacher asks questions while checking the audience's understanding. In some cases, the questioner may increase or decrease the number of options for answering the question, or the question to be presented may be created during the lesson. In order to cope with such a situation, the terminal operated by the questioner may be multi-functional so as to have an option setting and question creation function. However, since the data capacity of the data to be transmitted is greatly different between the multi-functional questioner's terminal and the response terminal operated by the audience, the data of the questioner's terminal is simply increased in functionality. There is concern about interference when attempting wireless transmission. However, the lecture start signal, page feed signal, lecture completion signal from the questioner's remote control, the questioned signal from the audience's remote control, etc. are not assumed, and the diversification of the presentation of captured images is not possible. In Patent Document 2 to be developed, since there is a lack of consideration for the multi-functionality of the terminal as described above and prevention of radio transmission interference associated therewith, an improvement thereof is required. Note that radio transmission interference can be prevented by assigning a unique frequency to the terminal, but since the frequency band that can be used is limited, the number of terminals is limited. Don't be.

  In view of the above-described problems, the present invention aims to provide a new presentation method that achieves both multifunctional use of a terminal used in a presentation performed while presenting a captured image of a camera to an audience and prevention of radio transmission interference. To do.

  In order to solve at least a part of the problems described above, the present invention can take the following forms or application examples.

[Application Example 1]
A document presentation system for exchanging with an audience while presenting a captured image obtained by capturing a document with a camera,
A material presentation device for performing data radio transmission / reception in a radio communication control unit while performing data imaging by the camera and image output of the captured image to an image display device visible to the audience; The material presentation device includes the wireless communication control unit having a specific slave unit operated by a questioner who performs a response, and an answer slave unit for each audience operated when the audience answers the question As a relay station, ready to send and receive data wirelessly,
The specific slave unit is involved in wireless transmission / reception of data with the wireless communication control unit of the material presentation device, and when receiving transmission permission from the wireless communication control unit, a predetermined time after receiving the transmission permission A specific slave unit transmitting and receiving unit for wirelessly transmitting data to the wireless communication control unit in the data transmission period of
Each of the answering slaves is involved in wireless transmission / reception of data with the wireless communication control unit of the material presentation device, and when receiving transmission permission from the wireless communication control unit, after receiving the transmission permission An answering device transceiver unit for wirelessly transmitting data to the wireless communication control unit during the data transmission period of
The wireless communication control unit of the material presentation device sets the transmission permission to the specific handset transmission / reception unit at a frequency higher than the transmission frequency of the transmission permission to the answering handset transmission / reception unit of each answering handset. The gist is to transmit to the specific handset transceiver unit.

  In the material presentation system of Application Example 1, data transmission / reception is performed between the material presentation device, the specific child device, and the answering child devices for each of a plurality of audiences wirelessly using a wireless communication control unit included in the material presentation device as a relay station. . This material presentation device receives wireless transmission of data in a predetermined data transmission period after transmitting a data transmission permission from both the specific device and the answering slave. In addition, the material presentation system of Application Example 1 transmits / receives transmission to the specific slave unit transmission / reception unit at a frequency higher than the transmission frequency of transmission permission to the response slave unit transmission / reception unit of each answering slave unit. Therefore, for the answering slave unit, the data transmission period from the specific slave unit to the material presentation device can be increased after securing the data transmission in the data transmission period after transmitting the transmission permission. As a result, even if the specific device is multi-functional to provide a data transmission capacity to the material presentation device, a large amount of data can be transmitted from the specific device to the material presentation device in the accumulation period of the data transmission period. Multifunctionality can be achieved without hindrance. Moreover, without assigning a specific frequency to each specific slave unit and each answering slave unit, it is possible to secure data transmission for each answering slave unit and prevent interference in data wireless transmission.

  The material presentation system of Application Example 1 described above can be configured as follows. For example, when the transmission permission is sequentially transmitted to the answering device transmission / reception unit of each answering device, each time the transmission permission is transmitted to the answering device transmission / reception unit of one answering device, the identification is performed. The transmission permission can be transmitted to the slave transmission / reception unit. In this way, the accumulation of data transmission periods from the specific slave unit to the material presentation device can be reliably increased.

  As the multi-functionalization of the specific slave unit in the material presentation system of Application Example 1 described above, the following mode can be adopted. For example, the range of the number of answer operation units that the answering slave unit has as a plurality of answer candidate options from the earliest choice to the last choice of the answer to the question through the operation by the questioner It is assumed that an option setting unit to be set in is provided. Since the setting of the answer candidate options is made by the questioner himself within the range of the number of answer operation units included in the answering device, the questioner sets the answer option for the question through the setting of the answer candidate options, for example. Since it can be increased or decreased each time a question is asked, the versatility and functions of the specified handset are enhanced. In addition, upon receiving permission for transmission from the wireless communication control unit of the material presentation device, the specified slave unit transmission / reception unit transmits the option specification data that defines the set answer candidate options to the wireless communication control unit. To do. By doing this, it is possible to transmit a plurality of option defining data defining the answer candidate options from the earliest option to the last option from the specific slave unit to the material presenting apparatus during the cumulative period of the data transmission period described above. Then, in the material presentation device, the transmitted option specification data is transmitted to the answering device transmitting / receiving unit of the answering device by the wireless communication control unit, and for each answering device, The plurality of response operation units corresponding to the first to last options included in the answer candidate options defined by the received option definition data can be notified to the audience. In this way, the audience operating the answering device can recognize that the notified answering operation unit is the answering operation target for the question, so that the convenience of the answering slave is increased.

  Further, the specific slave unit is configured as a tablet terminal, and drawing trajectory data indicating a drawing trajectory when the questioner performs a drawing operation using the specific slave unit as the tablet terminal is transmitted from the wireless communication control unit of the document presentation device. Each time a transmission permission is received, the specific handset transmitter / receiver wirelessly transmits it to the material presentation device. Normally, such drawing trajectory data has a large amount of data, but as described above, since the accumulation of the data transmission period from the specific slave unit to the material presentation device is increased, the specific slave unit to the material presentation device. Since this does not hinder the transmission of the drawing trajectory data, it can be a multifunctional terminal capable of a drawing function with the specific handset as a tablet terminal. Then, the material presentation device that has received the information of the drawing operation outputs a combined image obtained by superimposing the drawn image corresponding to the drawing trajectory data on the captured image of the camera to the image display device. Therefore, the questioner can be involved in the question with respect to the drawing trajectory when the drawing operation is performed using the specific slave unit. Thus, in the synthesized image presented to the audience, the captured image before the synthesis is displayed. Since it can be presented to the audience in association with the question, it is more versatile for the questioner.

  Note that the present invention can be realized in various modes. For example, the present invention can be realized in the form of a material presentation method and apparatus, a presentation system, an integrated circuit for realizing the functions of the method or apparatus, a computer program, a recording medium on which the computer program is recorded, and the like.

It is explanatory drawing explaining the system configuration | structure of the material presentation system 10 as an Example of this invention. It is explanatory drawing which shows the tablet 30 in front view. It is explanatory drawing which shows the answer clicker 40. FIG. 3 is a block diagram illustrating an internal configuration of a material presentation device 20. FIG. 2 is a block diagram illustrating an internal configuration of a tablet 30. FIG. 4 is a block diagram illustrating an internal configuration of an answer clicker 40. FIG. It is explanatory drawing explaining the mode of the wireless transmission / reception of the data between the data presentation apparatus 20, the tablet 30, and the answer clicker 40. FIG. It is explanatory drawing explaining the procedure which a teacher performs at the time of the educational support using the material presentation apparatus 20, and the procedure which a student performs. It is explanatory drawing which shows the detailed procedure from a captured image presentation to the setting of an answer candidate, apparatus operation, and the state of data transmission / reception. It is explanatory drawing which shows the detailed procedure in a teacher's reply reception and a student's reply action, a device operation, and the state of data transmission / reception. It is explanatory drawing which shows the state of a detailed procedure, apparatus operation, and data transmission / reception in grasping | ascertaining the correct answer situation of a teacher, and a student's correct answer recognition. It is explanatory drawing which shows the state of a detailed procedure, apparatus operation, and data transmission / reception in an answer status alert | report by the teacher's answer status grasp and the answer clicker 40. 4 is an explanatory diagram showing a relationship between a drawing area of a tablet 30 and an imaging area RA by a material presentation device 20. FIG. It is explanatory drawing which shows the mode of the captured image presentation in the state which took in the drawing by a teacher. It is explanatory drawing explaining the system configuration | structure of the material presentation system 10 of the material presentation system 10 of a modification. It is a block diagram explaining the internal structure of the tablet 30 of a modification.

  Next, embodiments of the present invention will be described based on examples. In the following, a description will be given of an embodiment assuming an educational support material presentation system in which a teacher presents images to a plurality of students and the teacher asks the student's reaction. FIG. 1 is an explanatory diagram for explaining the system configuration of a material presentation system 10 as an embodiment of the present invention.

  As shown in FIG. 1, the material presentation system 10 includes a material presentation device 20, a tablet 30 operated by a teacher as a questioner, an answer clicker 40 operated individually by students as an audience, and a television 50. The material presentation device 20 is capable of wirelessly transmitting and receiving data to and from the tablet 30 and the plurality of answer clickers 40, images the material RS placed in the imaging area RA, and transfers the captured image to the television 50 for data transfer. Output through the cable. The television 50 displays the output image as a display image IS on the screen. In this embodiment, it is assumed that adult beetle specimens and larva photographs are placed in the imaging area RA, but materials placed in the imaging area RA include documents, maps, pictures, books, and the like. It will be changed according to the teacher's questions.

  The material presentation device 20 includes a main body 22 installed on a desk, an operation unit 23 provided on the main body 22, a support column 24 extending upward from the main body 22, and a camera head 26 attached to the tip of the support column 24. And a zoom dial 27. The material presentation device 20 incorporates a video camera using a CCD in the camera head 26, and images the material RS placed on a desk or the like with a predetermined number of frames per unit time by the video camera. In the present embodiment, the material presentation device 20 images the material RS at 60 frames / second. Further, a USB interface 276 provided in the main body 22 is connected to a wireless USB transmission / reception unit 29 that exchanges predetermined data with each of the tablet 30 and the answer clicker 40. That is, the material presentation device 20 functions as a data transmission / reception relay station wirelessly. In this embodiment, wireless data transmission / reception is performed by the wireless communication technology described later using a specified frequency, but information is exchanged using other wireless technologies such as Bluetooth, infrared, and wireless LAN. It is good. The transmission / reception unit 29 may be built in the housing of the material presentation device 20.

  Next, the tablet 30 and the answer clicker 40 will be described. FIG. 2 is an explanatory view showing the tablet 30 in front view. As shown in the figure, the tablet 30 includes a power switch 31, a sound collecting microphone 32, and a power lamp 33 at the upper part of the main body, and a tablet operation unit 34 below the power switch 31. The tablet 30 transmits audio data collected by the sound collection microphone 32, specifically, audio data of a question sentence uttered by the teacher to a speaker (not shown). In addition, the tablet 30 displays the function changeover switch group 130 on the upper part of the tablet operation unit 34, and the lower part is set as a tablet operation area corresponding to each switch. The function changeover switch group 130 includes a camera switch 131, a drawing switch 132, a file open switch 133, a clicker instruction switch 134, a save switch 135, a maintenance switch 136, and a use lock switch 137. . Among these switches, the camera switch 131, the drawing switch 132, and the clicker instruction switch 134 are related to the question answering action of the present embodiment described later by the teacher and the students.

  When the camera switch 131 is operated by the teacher, the tablet 30 displays various switches for adjusting the imaging state such as the zoom of the camera of the material presentation device 20 from the tablet 30 side on the tablet operation unit 34 and is operated. The imaging adjustment data corresponding to the switch is wirelessly transmitted to the material presentation device 20. When the drawing switch 132 is operated, the locus drawn by the tablet pen Pn or the fingertip is converted into data on the tablet operation unit 34 and the locus data is wirelessly transmitted to the material presentation device 20. When the clicker instruction switch 134 is operated, various switches are displayed as shown in FIG. The various switches include an answer start instruction switch 134a, an answer end instruction switch 134b, an answer status display switch 134c, an answer status confirmation switch 134d, an answer candidate option setting switch 134e, a yes / no setting switch 134f, a reset switch 134g, and the like. Is included. Among these switches, the answer start instruction switch 134a, the answer end instruction switch 134b, the answer status display switch 134c, the answer status confirmation switch 134d, the answer candidate option setting switch 134e, and the reset switch 134g are questions of the present embodiment by the teacher and students. Related to answering.

  When the answer start instruction switch 134a is operated by the teacher, the tablet 30 wirelessly transmits the answer start data to the material presentation apparatus 20, and when the answer end instruction switch 134b is operated, the tablet 30 sends the answer end data to the material presentation apparatus 20. Wireless transmission. When the answer status display switch 134c is operated by the teacher, graph display command data for displaying a graph indicating the student's answer status is wirelessly transmitted to the material presentation device 20, and when the answer status confirmation switch 134d is operated, The response status display command data for discriminating the response status of the student by each response clicker 40 is wirelessly transmitted to the material presentation device 20. The answer candidate option setting switch 134e includes the same number of switches as the answer buttons of the answer clicker 40, and in this embodiment, six answer candidate option setting switches 134e_1 to 134e_6 are included. Then, by operating these setting switches, data defining options to be answered (answer candidate options) is wirelessly transmitted to the material presentation device 20. The reset switch 134g is operated by the teacher when the question is finished and the process proceeds to the next question, and the tablet 30 wirelessly transmits data defining the resetting of the answer candidate options to the material presentation device 20 by the operation of the switch. To do. The wireless transmission / reception of the data between the tablet 30 and the material presentation device 20 and the operation status of the material presentation device 20 and the tablet 30 associated therewith will be described later in association with the question answering action described later.

  FIG. 3 is an explanatory diagram showing the answer clicker 40. The answer clicker 40 is prepared for each student, and is indicated by answer clickers 40_1 to 40_i in FIG. The answer clicker 40 includes a power switch 41, a top light emitting unit 42, a power lamp 43, an answer button 144, a yes button 145, and a no button 146. The top light-emitting portion 42 of the answer clicker 40 is lit as described later when a student presses the answer button 144 or when there is a request for a reply status display from the teacher through the tablet 30. The answer buttons 144 are configured in the same number as the answer candidate option setting switches 134e of the tablet 30, and in the present embodiment, six answer buttons 144_1 to 144_6 are included. The six answer buttons 144_1 to 144_6 of the answer clicker 40 have a one-to-one correspondence with the answer candidate option setting switches 134e_1 to 134e_6 of the answer clicker 40, and the answer clicker 40 and the tablet 30 have the button arrangement and the switch arrangement. It is the same. Then, when any of the answer buttons 144_1 to 144_6 is pressed by the student, the answer clicker 40 wirelessly transmits data specifying the operated answer button 144 to the material presentation device 20. The same applies to the yes button 145 and the no button 146. The above-described wireless transmission / reception of data between the answer clicker 40 and the material presentation device 20 and the operation status of the material presentation device 20 and the answer clicker 40 associated therewith will be described later in association with the question answering action described later.

  Next, the electrical configuration and function of each device will be described. 4 is a block diagram illustrating the internal configuration of the material presentation device 20, FIG. 5 is a block diagram illustrating the internal configuration of the tablet 30, and FIG. 6 is a block diagram illustrating the internal configuration of the answer clicker 40.

  As shown in FIG. 4, the material presentation device 20 includes an imaging unit 210, an image processing unit 220, a CPU 230, a RAM 240, a hard disk (HDD) 250, and a ROM 260. The material presentation device 20 includes a digital data output interface (digital data output IF) 272, an analog data output interface (analog data output IF) 274, a USB interface (USBIF) 276, and an operation unit 23. The USBIF 276 is connected to a transmission / reception unit for transmitting / receiving predetermined data to / from the tablet 30 and to each answer clicker 40, that is, a wireless USB transmission / reception unit 29. The transmission / reception unit 29 is involved in wireless transmission / reception between the material presentation device 20 and the tablet 30 and wireless transmission / reception between the material presentation device 20 and the answer clicker 40. Note that these wireless transmission and reception will be described later in association with a question answering action described later.

  The imaging unit 210 includes a lens unit 212 and a charge coupled device (CCD) 214. The CCD 214 is an image sensor that receives light transmitted through the lens unit 212 and converts it into an electrical signal. The image processing unit 220 is composed of an AGC (Automatic Gain Control) circuit and a DSP (Digital Signal Processor), and receives an electric signal output from the CCD 214 to generate captured image data. The captured image generated by the image processing unit 220 is stored in a captured image buffer 241 provided in the RAM 240.

  The CPU 230 operates as the tablet driver 232 and the display output unit 233 by controlling the overall operation of the material presentation device 20 and reading and executing programs stored in the HDD 250 and the ROM 260. Further, the tablet driver 232 includes a data analysis processing unit 234, an image synthesis unit 236, and an audio input / output unit 238. These processing units will be described later in association with the question answering action described later.

  The RAM 240 includes a captured image buffer 241, a reception block buffer 242, a drawing image buffer 243, and a composite image buffer 244. These buffers are buffers that respectively store data that needs to be stored in the drawing image display process described later. Details will be described later in association with the question answering action described later.

  The digital data output IF 272 encodes captured image data or synthesized image data and outputs the encoded image data to the outside as a digital signal. The analog data output IF 274 performs digital / analog conversion on the captured image data or the synthesized image data, and outputs the converted data to the outside as RGB data. The analog data output IF 274 includes a D / A converter (DAC). The digital data output IF 272 and the analog data output IF 274 are provided with connectors for cable connection. In the present embodiment, the television 50 is connected to the analog data output IF 274.

  As shown in FIG. 5, the tablet 30 includes a touch panel 310, a CPU 330, a RAM 340, a ROM 350, and a transmission / reception unit 360. The touch panel 310 corresponds to the tablet operation unit 34 illustrated in FIG. 2 and is configured as a projected capacitive touch panel. The touch panel 310 includes a position / press detection unit 312 and an image display unit 314. The position / press detection unit 312 detects a change in capacitance between the conductive film constituting the touch panel 310 and the tablet pen Pn or the fingertip, and detects the pen tip position, the fingertip position, and the movement locus of the pen tip position. At the same time, the pressing state by the pen tip or the fingertip is detected. The image display unit 314 is configured as a liquid crystal display overlaid on the touch panel 310, and displays an image corresponding to each switch in response to the pressing operation of each switch of the function changeover switch group 130 described above. For example, when the clicker instruction switch 134 is pressed, the answer start instruction switch 134a, the answer candidate option setting switch 134e, etc. shown in FIG. 2 are displayed.

  The CPU 330 includes a drawing processing unit 331, a data generation / processing unit 332, and an audio conversion output unit 333. The drawing processing unit 331 recognizes the pen tip movement locus operated on the surface of the position / press detection unit 312 with the tablet pen Pn or the like as locus data of the drawing image, and transmits the data to the data presentation device 20 as the transmission / reception unit 360. Via wireless transmission. When each switch such as the answer start instruction switch 134a, the answer end instruction switch 134b, and the answer candidate option setting switch 134e is pressed, the data generation / processing unit 332 displays data defining the operated switch as a material presentation device. 20 is transmitted wirelessly via the transmission / reception unit 360. The voice conversion output unit 333 converts, for example, read-out voice data of a question sentence by a teacher who has collected sound by the sound collecting microphone 32 and transmits the converted data to a speaker (not shown). The transmission / reception unit 360 is involved in these wireless transmissions / receptions. The wireless transmission and reception and the operation status of the tablet 30 associated therewith will be described later in association with the question answering action described later. The RAM 340 includes a drawing data buffer 342 and a drawing image buffer 343. Both buffers temporarily store the drawing image data (drawing trajectory data) of the line drawing drawn with the tablet pen Pn described above in preparation for the data transmission.

  As shown in FIG. 6, the answer clicker 40 includes a CPU 410, a ROM 420, a transmission / reception unit 430, and a top indicator lamp 440. In addition, the answer clicker 40 includes a switch contact 147 and a button light 148 in association with each of the six answer buttons 144_1 to 144_6. The switch contact 147 outputs an ON signal to the CPU 410 when the corresponding answer button 144 is pressed. In response to the ON signal, the CPU 410 recognizes which answer button 144 has been pressed. The button light 148 is configured as a variable color light source including a plurality of LED light sources that emit light of different colors. The answer clicker 40 also has the switch contact 147 and the button light 148 for the yes button 145 and the no button 146 (see FIG. 2), but these are not directly related to the gist of the present invention together with the yes and no buttons. Therefore, the illustration is omitted.

  The CPU 410 includes a data generation / analysis processing unit 412 and a lighting control unit 414. The data generation / analysis processing unit 412 generates data for specifying the answer buttons 144_1 to 144_6 pressed by the student and outputs (wireless transmission), or analyzes the data received wirelessly via the transmission / reception unit 430 Or collate. The lighting control unit 414 controls the lighting of the power lamp 43, and also controls the lighting of the top display lamp 440 and the button light lamp 148 for each answer button located inside the colored translucent top light emitting section 42. . Note that wireless transmission / reception via the transmission / reception unit 430 and lighting control by the lighting control unit 414 will be described later in association with a question answering action described later.

  Next, the state of education support using the material presentation system 10 including the material presentation device 20, the tablet 30, and the answer clicker 40 will be described. Prior to this description, the state of wireless transmission / reception of data between the constituent devices of the material presentation system 10 will be described.

  The material presentation system 10 of the present embodiment uses the transmission / reception unit 29 of the material presentation device 20 as a relay station when performing wireless data transmission / reception among the material presentation device 20, the tablet 30, and the answer clicker 40. In addition, data transmission / reception between the tablet 30 and the material presentation device 20 and data transmission / reception between the answer clicker 40 and the material presentation device 20 are performed by the transmission / reception unit 360 of the tablet 30 and the transmission / reception unit 430 of the response clicker 40. Do through. A classroom is assumed as the data transmission / reception range, and data is wirelessly transmitted / received at a frequency in a band that does not hinder data transmission / reception in the classroom, for example, 2.4 GHz. FIG. 7 is an explanatory diagram for explaining the state of wireless data transmission / reception among the material presentation device 20, the tablet 30, and the answer clicker 40. Note that data transmission / reception described below is performed through the transmission / reception unit 29 of the material presentation device 20, the transmission / reception unit 360 of the tablet 30, and the transmission / reception unit 430 of the answer clicker 40.

  As shown in the figure, when the material presentation device 20, the tablet 30, and each answer clicker 40 are turned on and the operation of the material presentation system 10 is started, the material presentation device 20 transmits the transmission timing every predetermined time, for example, 15 ms. Data is transmitted wirelessly at each transmission timing. The data for each transmission timing includes an identification signal for identifying each of the tablet 30 and the answer clicker 40 and a transmission permission signal for permitting data transmission to the material presentation device 20. Data including one of the identification signal or the identification signal of one of the answer clickers 40 and the transmission permission signal is wirelessly transmitted. The tablet 30 and each answer clicker 40 each receive data transmitted at the above transmission timing from the material presentation device 20 each time, and if the data includes its own identification signal, the data is included in the data. In response to the transmission permission signal, the data is wirelessly transmitted to the material presentation device 20. In this case, if the tablet 30 or the answer clicker 40 has not been operated by the teacher or student, there is no need for data transmission. Therefore, when receiving the above-described transmission permission signal in such a situation, there is no data. It is also possible to transmit null data indicating this, or not to perform data transmission. On the other hand, the tablet 30 and each answer clicker 40 do not transmit data to the material presentation device 20 unless the identification signal is included in the data received from the material presentation device 20.

  In addition, the material presentation device 20 first wirelessly transmits data including the identification signal of the tablet 30, and then wirelessly transmits data including the identification signal of one answer clicker 40_1 of the plurality of answer clickers 40. At the subsequent transmission timing, data including the identification signal of the tablet 30 is wirelessly transmitted again, and at the next transmission timing, data including the identification signal of the answer clicker 40_2 which is the next answer clicker 40 is wirelessly transmitted. That is, the material presentation device 20 transmits the data including the identification signal of the tablet 30 to each of all the response clickers 40 included in the material presentation system 10 every time the data including the identification signal of one response clicker 40 is wirelessly transmitted. Will be transmitted wirelessly. If such data transmission is described including the tablet 30 that is the data receiving side and each answer clicker 40, the material presentation device 20 first performs wireless transmission of data to the tablet 30, and then the response Data wireless transmission to the clicker 40_1, wireless data transmission to the tablet 30, wireless data transmission to the answer clicker 40_2, wireless data transmission to the tablet 30, and so on. . Therefore, as shown in FIG. 7, the material presentation device 20 wirelessly transmits data to the tablet 30 every time wireless transmission of data to one answer clicker 40 is performed. By doing this, the frequency of wireless transmission of data to the tablet 30 is increased, and the accumulation of data transmission time from the tablet 30 is increased to ensure data transmission.

  The tablet 30 that has received the wireless transmission of data from the material presentation device 20 sends the data to the material presentation device 20 during a predetermined data transmission time (the above 15 ms) after receiving the transmission permission signal included in the received data. Wireless transmission. In each answer clicker 40, the material presentation device 20 in a predetermined data transmission time (the above 15 ms) after the answer clicker 40 that matches the received identification signal receives the above transmission permission signal. Wirelessly transmit data to Since the data transmitted from the answer clicker 40 is sufficient if the answer button 144 can be specified as described later, even if the data transmission time is as short as 15 ms as described above, the data transmission from the answer clicker 40 is performed. Can be secured. At the beginning of operation after the power is turned on, the answer clicker 40 that has received the transmission permission signal from the material presentation device 20 wirelessly transmits to the material presentation device 20 an ON signal indicating completion of answer preparation. This ON signal can be used for student attendance confirmation and the like.

  By the way, the material presentation system 10 of the present embodiment assumes that the teacher asks the student while the captured image of the material presentation device 20 is copied to the television 50 and presented to the student, and the student answers the question. And support education. Since the student answers the question by pressing the answer button 144 of the answer clicker 40 prepared for each student, the data transmission from the answer clicker 40 is the transmission of data that can specify the answer button as described above. Is enough. On the other hand, as described with reference to FIG. 2, the tablet 30 adjusts the imaging of the material presentation device 20 through drawing by the teacher, drawing using the tablet pen Pn, answer candidate option setting function, answer start and end Since it performs functions such as instructions, the necessity of data transmission / reception is high in each stage, and the amount of data to be transmitted also increases. Considering this, the material presentation system 10 according to the present embodiment adopts a data transmission form as shown in FIG. 7 and increases data transmission time from the tablet 30 to ensure data transmission.

  In addition, wireless transmission / reception of data can be performed only between the tablet 30 and the material presentation device 20 in the following specific period. For example, at the beginning of operation after the power is turned on, or during the imaging adjustment of the material presentation device 20 performed through the operation of the camera switch 131 of the tablet 30 only for the imaging adjustment of the material presentation device 20, the material RS to be imaged For example, during the exchange, there is no need for the data transmission from the answer clicker 40 because there is no answering action by the student. Further, data transmission / reception with respect to the answer clicker 40 is not particularly required even before the teacher gives an instruction to make an answer or sets answer candidate options. Therefore, in this embodiment, for such a period, data is transmitted and received only between the tablet 30 and the material presentation device 20, and the teacher instructs the answer during other periods, specifically, after presenting questions. Then, after the answer candidate option is set, the data transmission / reception as described in FIG. 7 can be performed. Hereinafter, education support by the material presentation system 10 including the state of data transmission / reception among the material presentation device 20, the tablet 30, and the individual answer clickers 40 will be described. FIG. 8 is an explanatory diagram for explaining the procedure performed by the teacher and the procedure performed by the student in education support using the material presentation device 20.

  As shown in the drawing, the teacher copies the captured image of the material presentation device 20 on the television 50 and presents it to the student (step S100T). That is, the material presentation device 20 images the material RS placed in the imaging area RA by the imaging unit 210 (see FIG. 4), and generates a captured image by the imaging unit 210 and the image processing unit 220. The captured image data is output to the television 50, and the captured image is presented to the student on the television 50. On the other hand, the student recognizes the image on the television 50 (step S100S). Next, the teacher sets a question, presents it to the student, and sets options as answer candidates (step S200T). In response to this, the student recognizes the presented question and the answer candidate options (step S200S). FIG. 9 is an explanatory diagram showing a detailed procedure from presentation of captured images to setting of answer candidates, device operation, and data transmission / reception.

  As shown in the figure, in step S100T, the tablet 30 waits for imaging adjustment such as focus and zoom by the teacher (step S110T). When the imaging adjustment of the material presentation device 20 is performed through the operation of the camera switch 131 (see FIG. 2) by the teacher, the tablet 30 sends the imaging adjustment data based on the operation to the processing unit 332 of the CPU 330 (see FIG. 5). ) And wirelessly transmits the created imaging adjustment data to the transmission / reception unit 29 (see FIG. 4) of the material presentation device 20 by the transmission / reception unit 360 (step S120T). The imaging adjustment of the material presentation device 20 is often performed in a situation unrelated to the operation of the answer clicker 40, such as before the question is set by the teacher, during the switching of the question, or during the exchange of the material RS. In the present embodiment, under the situation where the operation of the answer clicker 40 is not involved, the tablet 30 wirelessly transmits the imaging adjustment data including the identification signal of the tablet 30 itself to the document presentation device 20 in accordance with the operation of the camera switch 131. Send. On the other hand, even after the start of answer is instructed, the teacher may adjust the focus or zoom. Under such circumstances, the wireless transmission of the imaging adjustment data from the tablet 30 to the material presentation device 20 is performed whenever the tablet 30 receives data including the identification signal and the transmission permission signal from the material presentation device 20 described in FIG. This is done at the data transmission time.

  The material presentation device 20 waits for reception of imaging adjustment data from the tablet 30 (step S110C). Then, when receiving the imaging adjustment data, the material presentation device 20 performs device adjustment in accordance with the imaging adjustment data in the imaging unit 210 (see FIG. 4), and then, as shown in FIG. The material RS (adult beetle specimen and larvae photograph) is imaged, and the captured image is output to the television 50 and displayed (step S120C). Thereby, the student recognizes the image of the television 50, that is, the captured image of the adult beetle specimen and the larva photograph.

  When the material presentation device 20 receives the imaging adjustment data from the tablet 30, thereafter, it is scheduled that the teacher will set and present questions, answer candidate options, and start answers. Therefore, after receiving the imaging adjustment data from the tablet 30, the material presentation device 20 stores the data including the identification signal and the transmission permission signal of the tablet 30 or each answer clicker 40 as described in FIG. 7. And repeatedly sent to each answer clicker 40. In this case, if the state in which the imaging adjustment data is not received from the tablet 30 continues for a predetermined time, after the predetermined time has elapsed, the material presentation device 20 causes the tablet 30 or the individual answer clicker 40 to operate as described with reference to FIG. The data including the identification signal and the transmission permission signal are repeatedly transmitted to the tablet 30 and the individual answer clickers 40.

  In the subsequent step S200T, the tablet 30 waits for setting of answer candidate options by the teacher (step S210T). During this waiting period, the teacher sets a question and presents the question to the student. For example, as shown in FIG. 1, if an adult specimen of a beetle and a captured image of a larva photograph are presented, the teacher sets a question regarding this. At this time, the teacher can set various questions in consideration of the degree of understanding of the students. For example, the question “Does the beetle overwinter but overwhelm as an adult or overwinter with a larva?” (Hereinafter, question 1), “Do the beetle overwinter as an adult, overwinter with a larva, or Teachers will be able to understand the level of understanding of students, such as the question “Why do both adults and larvae overwinter?” (Hereinafter, question 2) and “how many larvae will molte” (hereinafter, question 3). Various questions can be set accordingly. Then, the teacher presents the set question to the student. Questions can be presented to students by various methods such as writing question texts on the classroom blackboard and reading out the question texts. When the teacher reads out the question sentence, the tablet 30 outputs the sound collected by the sound collecting microphone 32 to the speaker, so that the student recognizes the question with the sound from the speaker (FIG. 8: Step S200S). . Note that it is also possible to attach a sound collecting microphone to the material presenting apparatus 20 and recognize the question to the student by voice through the sound collecting microphone on the material presenting apparatus side. In this case, the tablet 30 can be configured without the sound collection microphone 32.

  The teacher sets options as answer candidates for the question, following the above-described question setting. If the question is the above-described question 1, there are two answer candidate options, and there are three answer candidate options for question 2. Question 3 can be set in various ways, such as two answer candidate options from one molting to two molting, and four answer candidate options from one molting to four molting. Thus, since the number of answer candidate options is determined according to the question, the teacher sets the answer candidate option according to the question every time the question is presented.

  The tablet 30 is involved in this option setting, and the teacher operates one of the six answer candidate option setting switches 134e_1 to 134e_6 of the tablet 30. In this embodiment, the upper limit of answer candidate options is the number of clicker instruction switches 134 of the tablet 30, that is, the number of answer buttons 144 of the answer clicker 40 (six), and an arbitrary number of answers among these six Candidate options can be set. For example, if the teacher operates the answer candidate option setting switch 134e_3, there are three answer candidate options. If the answer candidate option setting switch 134e_4, four answer candidate options are selected. If the answer candidate option setting switch 134e_5 is selected, five answer candidate options are selected. . Then, if the question is question 1 as described above, the teacher presses the answer candidate option setting switch 134e_2 to define two answer candidate options, and in question 2, the answer is pressed by pressing the answer candidate option setting switch 134e_3. Three candidate options are defined. In question 3, the number of answer candidate options is defined by operating one of the answer candidate option setting switches 134e_1 to 134e_6. That is, the tablet 30 waits for a pressing operation of the answer candidate option setting switch 134e by the teacher in the option setting standby in step S210T. Then, the tablet 30 wirelessly transmits the option defining data corresponding to the operated answer candidate option setting switch 134e to the transmission / reception unit 29 (see FIG. 4) of the material presentation device 20 by the transmission / reception unit 360 (step S220T). At this time, the wireless transmission of the option defining data from the tablet 30 to the material presentation device 20 is after the material presentation device 20 receives the imaging adjustment data from the tablet 30. Therefore, the tablet 30 is as described with reference to FIG. The option defining data is wirelessly transmitted to the material presentation device 20 at the data transmission time for each reception of data including the identification signal and the transmission permission signal of the tablet 30.

  The material presentation device 20 waits for reception of the option definition data from the tablet 30 (step S210C), and the received option definition data is wirelessly transmitted to the transmission / reception unit 430 (see FIG. 6) of each answer clicker 40 by the transmission / reception unit 29. Transmit (step S220C). Regarding the wireless transmission of option definition data from the material presentation device 20 to each response clicker 40 at this time, the material presentation device 20 follows the procedure described with reference to FIG. Is included in the option definition data and data is transmitted.

  The answer clicker 40 waits for reception of the option definition data from the material presentation device 20 (step S210S), analyzes the received option definition data in the data generation / analysis processing unit 412 (see FIG. 6) of the CPU 410, With respect to the answer button 144 corresponding to the option definition data, each button emission lamp 148 is controlled to be initially lit to a predetermined color, for example, blue (step S220S). For example, if the received option definition data is data in which the teacher presses the answer candidate option setting switch 134e_2 in association with the above question 1, the answer clicker 40 responds so as to correspond to the answer candidate option setting switch 134e_2. For the buttons from the button 144_1 to the answer button 144_2, the button light 148 is turned on, and the buttons from the answer button 144_1 to the answer button 144_2 are initially lit in blue. If the received option definition data is data accompanying pressing of the answer candidate option setting switch 134e_3 corresponding to the above-described question 2, the answer clicker 40 initially sets the buttons from the answer button 144_1 to the answer button 144_3 in blue. Lights up. That is, the answer clicker 40 initially displays the answer buttons 144 in blue for the number corresponding to the received option definition data. With the initial lighting display of the answer button 144, the student can recognize the answer button 144 corresponding to the answer candidate option (FIG. 8: step S200S) and visually recognize which answer button 144 should be pressed. In this embodiment, since the first option among the answer candidate options is the answer button 144_1, the last option is the answer button 144 corresponding to the answer candidate option setting switch 134e pressed by the teacher with the tablet 30. It becomes. In this case, if the number of answer candidate options is less than the upper limit of six, the first option among the answer candidate options is set as an answer button other than the answer button 144_1, and the number of answer candidate options continues from the answer button. The answer button can also be initially lit in blue.

  In this step S220S, the answer clicker 40 initially lights up each answer button 144 corresponding to the received option definition data, and accepts a pressing operation when a student answers for the answer button 144 that is initially lit. become. Such an operation reception is performed by the data generation / analysis processing unit 412. The answer button 144 corresponding to the option definition data is temporarily stored until a reset described later, and the actually pressed answer button 144 is stored. If the answer button 144 matches, the pressing operation becomes valid. Thereby, even if the student presses the answer button 144 that does not correspond to the option definition data, it can be prevented from accepting it.

  Following the provision of the answer candidate options by the tablet 30 and the initial lighting of the answer button 144 corresponding to the answer candidate options by the answer clicker 40, as shown in FIG. 8, the teacher accepts the student's answer (step S300T), The student performs an answering action (step S300S). FIG. 10 is an explanatory diagram showing a detailed procedure, device operation, and data transmission / reception in a teacher's response reception and student response.

  As shown in the drawing, in step S300T, the tablet 30 waits for a teacher to start an answer (step S310T). When the teacher presses the answer start instruction switch 134a (see FIG. 2), the tablet 30 wirelessly transmits the answer start data to the sending / receiving unit 29 (see FIG. 4) of the material presentation device 20 by the sending / receiving unit 360. (Step S320T). Even when the response start data is wirelessly transmitted from the tablet 30 to the material presentation device 20 at this time, the data for each reception of the identification signal of the tablet 30 and the transmission permission signal from the material presentation device 20 as described in FIG. It is made at the transmission time.

  The material presentation device 20 waits for reception of answer start data from the tablet 30 (step S310C), and accepts an answer from the answer clicker 40 when the answer start data is received (step S320C). Thereafter, the material presentation device 20 waits for reception of the answer pressing button defining data from the answer clicker 40 (step S330C).

  On the other hand, the answer clicker 40 waits for the student to press the answer button 144 (step S310S), and the student operates one of the answer buttons 144 initially lit in step S220S. For example, in the case of the above question 2, the teacher sets three answer candidate options, and in response to this, the answer clicker 40 initially sets the answer buttons from the answer button 144_1 to the answer button 144_3 as described above. Since it is lit, the student operates any one of the answer buttons 144_1 to 144_3. When the operation of the answer button 144 is performed by the student, the answer clicker 40 uses the data generation / analysis processing unit 412 (see FIG. 6) of the CPU 410 to specify the answer button 144 that specifies the answer button 144 that has been pressed. And wirelessly transmit the data to the material presentation device 20 (step S320S). At this time, the response clicker 40 wirelessly transmits the answer pressing button stipulated data from the answer clicker 40 to the material presentation device 20 as described in FIG. The data transmission time is received after receiving the data including In this case, it is also expected that the student presses the answer button 144 of the answer clicker 40 before starting the answer, and if so, the document presentation apparatus 20 sends the answer start data to the answer clicker button transmission data from the answer clicker 40. There is a possibility that it will be done before receiving. However, the material presentation device 20 receives an answer from the answer clicker 40 in response to the receipt of the answer start data (step S320C), and then waits for the receipt of answer press button provision data from the answer clicker 40 (step S330C). Therefore, the material presentation device 20 accepts only the pressing operation of the answer button 144 by the student after pressing the answer start instruction switch 134a by the teacher.

  Following step S320S, the answer clicker 40 lights the button light 148 corresponding to the answer button 144 pressed by the student with a red color different from the initial lighting (step S330S). Thereby, the student can recognize which answer button 144 is pressed. Thereafter, the answer clicker 40 initially lights up the top indicator lamp 440 (step S340S), and prepares for the subsequent correct answer recognition. The initial lighting of the top indicator lamp 440 in step S340S is performed by continuously lighting the top indicator lamp 440.

  When the material presentation device 20 receives the answer press button defining data from the answer clicker 40, the data presenting device 20 stores the data as answer data (step S340C), and waits for reception of answer end data from the tablet 30 (step S350C). The material presentation device 20 makes a pair of the identification symbol of the answer clicker 40 that transmitted the answer press button definition data and the answer press button definition data, and stores it as answer data. When the material presentation device 20 receives the response end data from the tablet 30, the material presentation device 20 aggregates and stores the response data without accepting data reception from the response clicker 40 (step S360C). In this case, the material presentation device 20 can wirelessly transmit the response end data from the tablet 30 to the tablet 30, and can also wirelessly transmit the stored response data and the response total to the tablet 30. In this way, the answer data and tabulation stored in the material presentation device 20 can be output and displayed on the television 50, or the tablet 30 can display answer data and tabulation that only the teacher can recognize on the tablet operation unit 34.

  After transmitting the answer start data in step S320T, the tablet 30 waits for the answer end by the teacher (step S330T). When the teacher presses the answer end instruction switch 134b (see FIG. 2) by the teacher, the tablet 30 wirelessly transmits the answer end data to the transmission / reception unit 29 of the material presentation device 20 by the transmission / reception unit 360 (step S340T). Prepare for grasping the correct situation. Even when the response end data is wirelessly transmitted from the tablet 30 to the material presentation device 20 at this time, the data including the identification signal and the transmission permission signal of the tablet 30 from the material presentation device 20 as described in FIG. This is done at the data transmission time for each reception.

  After sending the answer start / end regulation by the tablet 30 and sending the answer pressing button regulation data by the answer clicker 40 and the initial lighting of the top indicator light 440, as shown in FIG. (Step S400T), and the student recognizes the correct answer (step S400S). FIG. 11 is an explanatory diagram showing a detailed procedure, device operation, and data transmission / reception in grasping the correct answer situation of the teacher and recognizing the correct answer of the student.

  As shown in the figure, in step S400T, the tablet 30 waits for an instruction of a correct answer option from the teacher (step S310T). This correct answer option is defined by the teacher again operating one of the answer candidate option setting switches 134e_1 to 134e_6. Therefore, when the teacher presses the answer candidate option setting switch 134e again by the teacher, the tablet 30 transmits the correct option definition data corresponding to the operated answer candidate option setting switch 134e by the transmission / reception unit 360. It transmits to the transmission / reception part 29 by radio | wireless (step S420T), and prepares for the subsequent reply condition grasp. Even in the wireless transmission of the correct option definition data from the tablet 30 to the material presentation device 20 at this time, the data including the identification signal and the transmission permission signal of the tablet 30 from the material presentation device 20 as described in FIG. This is done at the data transmission time for each reception.

  The material presentation device 20 waits for reception of the correct answer option definition data from the tablet 30 (step S410C), and wirelessly transmits the received correct option definition data to the transmission / reception unit 430 of the answer clicker 40 (step S420C). At this time, for the wireless transmission of the correct answer option defining data from the material presentation device 20 to each response clicker 40, the material presentation device 20 follows one of the response clickers 40 in the response clicker 40 according to the procedure described in FIG. 40 identification signals are included in the correct option definition data, and the data is transmitted.

  The answer clicker 40 waits for reception of the correct option definition data from the material presentation device 20 (step S410S), analyzes the received correct option definition data in the data generation / analysis processing unit 412 of the CPU 410, and determines the correct option specification. It is determined whether or not the answer button 144 corresponding to the data has been pressed by the student (step S420S). If the determination is affirmative, the button light 148 of the answer button 144 that has been correctly answered is controlled to turn on in a different color, for example, orange, from the initial lighting at step S220S and the distinction lighting at step S330S (step S430S). Thereby, the student who answered the correct answer option can recognize that his / her answer was correct. In addition, the student who has not answered the correct answer option remains in the same color (blue) as when the answer button 144 pressed by the user was turned on in step SS330S, indicating that the answer was incorrect. I can recognize it. The answer clicker 40 prepares for subsequent answer status notification after this lighting control.

  After grasping the correct answer situation by the tablet 30 and the correct answer recognition by the answer clicker 40, as shown in FIG. 8, the teacher grasps the answer situation of the student (step S500T), and the student side answers by the answer clicker 40. A situation notification is made (step S500S). FIG. 12 is an explanatory diagram showing a detailed procedure, device operation, and data transmission / reception in the grasping of the answer status of the teacher and the answer status notification by the answer clicker 40.

  As shown in the figure, in step S500T, the tablet 30 waits for an instruction to grasp the answer status by the teacher (step S510T). This answer status grasping is to grasp which option is selected as a correct answer option by the student. The teacher presses the answer status confirmation switch 134d (see FIG. 2) and the answer candidate option setting switches 134e_1 to 134e_6 following this. The start is instructed by any of the pressing operations. Therefore, the tablet 30 wirelessly transmits to the transmission / reception unit 29 of the material presentation device 20 by the transmission / reception unit 360 the grasp target option definition data corresponding to the response candidate option setting switch 134e that is pressed following the response status confirmation switch 134d by the teacher. (Step S520T). In this case, in step S520T, when a plurality of answer candidate option setting switches 134e are operated following the answer status confirmation switch 134d, grasping target option defining data corresponding to each operated answer candidate option setting switch 134e. Is transmitted wirelessly. Even when wirelessly transmitting grasp target option definition data from the tablet 30 to the material presentation device 20 at this time, the data including the tablet identification signal and the transmission permission signal from the material presentation device 20 as described in FIG. This is done at the data transmission time for each reception.

  The material presentation device 20 waits for reception of the grasp target option definition data from the tablet 30 (step S510C), and wirelessly transmits the received grasp target option definition data to the transmission / reception unit 430 of the answer clicker 40 (step S520C). At this time, regarding the wireless transmission of the grasp target option definition data from the material presentation device 20 to each response clicker 40, the material presentation device 20 follows the procedure described in FIG. The identification signal of the clicker 40 is included in the grasping target option definition data and data is transmitted.

  The answer clicker 40 waits for reception of the grasp target option definition data from the material presentation device 20 (step S510S), and analyzes the received grasp target option definition data by the data generation / analysis processing unit 412 of the CPU 410. It is determined whether or not the answer button 144 corresponding to the target option definition data has been pressed by the student (step S520S). If the determination is affirmative, the answer clicker 40 controls lighting of the top indicator lamp 440 so that it is different from the initial lighting in step S340S, for example, blinking lighting (step S530S). As a result, the teacher can recognize which student has selected which option by lighting the top indicator lamp 440.

  Following step S520T, the tablet 30 waits for a reset instruction from the teacher (step S610T). This reset is for transition to the next question. When the teacher presses the reset switch 134g (see FIG. 2), the reset regulation data is transmitted to the transmission / reception unit 29 of the material presentation device 20 by the transmission / reception unit 360. Wireless transmission is performed (step S620T), and the process ends. Even in the wireless transmission of the reset regulation from the tablet 30 to the material presentation device 20 at this time, reception of data including the identification signal of the tablet 30 and the transmission permission signal from the material presentation device 20 as described in FIG. At each data transmission time.

  The material presentation device 20 waits for reception of the reset regulation data from the tablet 30 (step S610C), and wirelessly transmits the received reset regulation data to the transmission / reception unit 430 of the answer clicker 40 (step S620C). Regarding the wireless transmission of the reset regulation data from the material presentation device 20 to each response clicker 40 at this time, the material presentation device 20 follows the procedure described with reference to FIG. Is included in the reset regulation data and data is transmitted.

  The answer clicker 40 waits for reception of the reset regulation data from the material presentation device 20 (step S610S), and based on the received reset regulation data, the lighting control unit 414 of the CPU 410 causes the button light for each answer button 144 to be emitted. 148 and the top indicator lamp 440 are extinguished to reset the lighting (step S520S), and the process is terminated.

  The execution order of correct answer situation grasping (step S400T) and answer situation grasping (step S500T) in the tablet 30 described above is determined by the switch, answer candidate option setting switch 134e or answer situation confirmation switch 134d previously operated. In addition, either or both of them are skipped by operating the reset switch 134g. Since the answer clicker 40 is not operated until the teacher operates the reset switch 134g to present the next question and start answer candidate choices and answers, as described above, the document presentation device 20 and the tablet 30 are not operated. Data transmission / reception only between the document presentation apparatus 20 and the tablet 30 and the individual answer clickers 40, which are continuously supported by education, and continue to follow FIG. Can be continued.

  As described above, in the material presentation system 10 that provides education support, the tablet 30 can make the tablet operation unit 34 shown in FIG. 2 a drawing area by the teacher through the operation of the drawing switch 132 as described above. FIG. 13 is an explanatory diagram showing the relationship between the drawing area of the tablet 30 and the imaging area RA by the material presentation device 20. As shown in the figure, since the tablet operation unit 34 of the tablet 30 corresponds to the imaging area RA, the teacher performs the question presentation and the answer grasp described in FIG. 8 while performing the drawing related to the question. Can do. FIG. 14 is an explanatory diagram showing the state of the captured image presentation in a state where drawing by the teacher is taken in.

  As shown in FIG. 13, the teacher can recognize the correspondence between the drawing position of the tablet pen Pn and the position of the imaging area RA by the material presentation device 20. Then, when presenting to the student the above-mentioned question 2, “whether the beetle overwinters as an adult, overwinters with a larva, or both adult and larvae overwinter?” The numerical value “1” corresponding to the first option is drawn on the tablet operation unit 34 to be drawn with the tablet pen Pn. For the larvae, a numerical value “2” corresponding to the second option is drawn on the tablet operation unit 34 corresponding to the imaging position with the tablet pen Pn, and a numerical value “3” corresponding to the third option is displayed at an arbitrary position. “3” and “both” characters are drawn. The tablet 30 wirelessly transmits drawing trajectory data of the image thus drawn to the material presentation device 20 by the transmission / reception unit 360. The wireless transmission of the drawing trajectory data is performed during the repeated data transmission time from the tablet 30 described with reference to FIG.

  In the material presentation device 20, the image composition unit 236 (see FIG. 4) of the CPU 230 draws on the captured image of the imaging area RA based on the drawing trajectory data from the tablet 30, that is, the numerical value “1” and the numerical value “1”. Drawing images corresponding to “2” and “3” are combined, and data of the combined image is output to the television 50. Therefore, the student can be presented with the option corresponding to the above question 2 together with the image of the beetle adult and the image of the larvae. In this case, the drawing of numerical values or the like by the teacher may be after the answer reception is started through the operation of the answer start instruction switch 134a.

  As described above, in the material presentation system 10 according to the present embodiment, when presenting a captured image obtained by capturing a material with the camera of the material presentation device 20 to the student and asking the student's reaction, the teacher himself / herself uses the tablet 30. The answer candidate option setting switch 134e is operated to select a plurality of answer candidate options for the question from the answer candidate option setting switch 134e_1 as the first option to the answer candidate option setting switch 134e_3 as the last option, for example. Answer candidate options are set (FIG. 10: Step S210T). Since this setting is made by the teacher himself within the range of the number of answer buttons 144 included in the answer clicker 40, the teacher who is the questioner sets the answer option for the question, for example, every time the question is asked. Can be increased or decreased. Therefore, according to the material presentation system 10 of the present embodiment, the versatility of the question setting when the teacher asks the student can be improved.

  In the material presentation system 10 according to the present embodiment, when answer candidate options are set through the operation of the teacher 30 by the teacher, the tablet 30 transmits / receives option definition data that specifies the set answer candidate options. At 360, wireless transmission is performed to the transmission / reception unit 29 of the material presentation device 20 (FIG. 10: step S220T). The answer clicker 40 receives the option defining data from the transmission / reception unit 29 of the material presentation device 20 functioning as a relay station by the transmission / reception unit 430 (FIG. 10: step S210TS). Then, the answer clicker 40 initially notifies the students of the answer buttons 144 corresponding to each of the plurality of answer candidate options specified by the received option specifying data by lighting the button light 148 for each button in blue. (FIG. 10: Step S220TS). Therefore, the student who operates the answer button 144 of the answer clicker 40 can easily visually recognize that the answer button 144 initially notified in blue is an answer operation target for the question. Therefore, according to the material presentation system 10 of the present embodiment, it is possible to improve convenience when a student performs an answer operation using the answer clicker 40.

  Further, in the material presentation system 10 of the present embodiment, for the tablet 30 used by the teacher as the questioner, the material presentation device displays drawing locus data indicating the drawing locus drawn by the teacher using the tablet operation unit 34 of the tablet 30. 20 is wirelessly transmitted from the transmitting / receiving unit 360 (see FIG. 14). The wireless transmission of the drawing trajectory data from the tablet 30 to the material presentation device 20 at this time is the identification of the tablet from the material presentation device 20 as described in FIG. 7 because the drawing trajectory data is a large amount of data. This is done in the accumulation of the data transmission time for each reception of data including the signal and the transmission permission signal. Then, the material presentation device 20 outputs to the television 50 a synthesized image obtained by superimposing the drawn image corresponding to the received drawing trajectory data on the captured image, and presents the synthesized image to the student. Therefore, according to the material presentation system 10 of the present embodiment, the teacher can be involved in the question with respect to the drawing trajectory when the drawing operation is performed using the tablet 30, and thereby the composition presented to the student. In the image, since the captured image before the composition can be presented to the audience in association with the question, versatility for the teacher as the questioner can be further enhanced.

  Further, in the material presentation system 10 according to the present embodiment, since the tablet operation unit 34 of the tablet 30 is associated with the imaging region RA of the material presentation device 20, as shown in FIG. Answer candidate choices can be drawn separately for each choice. Therefore, the student can distinguish a plurality of answer candidate options from the earliest option to the last option in the composite image and visually recognize them together with the captured image, so that convenience is further improved. Even when wirelessly transmitting the drawing trajectory data when the options are distinguished and drawn as described above, since the data is large-capacity data, as described with reference to FIG. This is done by accumulating data transmission time for each reception of data including a permission signal.

  Further, in the material presentation system 10 of the present embodiment, since the transmission / reception unit 29 of the material presentation device 20 is used as a wireless data transmission / reception relay station, the tablet 30, the material presentation device 20, and each answer clicker 40 mutually exchange data. This eliminates the need for a data transfer system capable of transmission and its control, which is simple. Then, the material presentation device 20 serving as a relay station can perform answer aggregation based on correspondence between a plurality of answer candidate options set by the teacher on the tablet 30 and the answer button 144 operated by the audience with each answer clicker 40. It becomes.

  As described above, in the material presentation system 10 according to the present embodiment, data is transmitted from both the tablet 30 operated by the teacher and the answer clicker 40 for each student to the material presentation device 20 that functions as a relay station, in detail, to the transmission / reception unit 29. When the data is received wirelessly, the material presentation device 20 transmits a data transmission permission signal from the transmission / reception unit 29 to the transmission / reception unit 360 of the tablet 30 and the transmission / reception unit 430 of each answer clicker 40. Then, the material presentation device 20 receives wireless transmission of data from the tablet 30 and each answer clicker 40 in a predetermined data transmission period (15 ms) after transmitting the transmission permission signal. In addition, as shown in FIG. 7, the material presentation system 10 according to the present embodiment performs a transmission permission signal sequentially from the transmission / reception unit 29 of the material presentation device 20 to the transmission / reception unit 430 of each answer clicker 40. Each time a transmission permission signal is transmitted to the transmission / reception unit 430 of one answer clicker 40, the transmission permission signal is transmitted to the transmission / reception unit 360 of the tablet 30, so that the transmission frequency of the transmission permission signal to the transmission / reception unit 360 of the tablet 30 is increased. The transmission frequency of the transmission permission signal to the transmission / reception unit 430 of each answer clicker 40 is surely increased.

  By adopting such a data transmission method, in the material presentation system 10 of the present embodiment, each answer clicker 40 secures data transmission in the data transmission period after transmitting the transmission permission signal, and then the tablet 30 The accumulation of the data transmission period from the document to the material presentation device 20 is increased. As a result, according to the material presentation system 10 of the present embodiment, even if the tablet 30 is multi-functionalized so as to have not only answer candidate choices and answer start and setting but also a drawing function, the material presentation device 20 from the tablet 30 can be provided. As the data transmission capacity increases, a large amount of data can be transmitted from the tablet 30 to the material presentation device 20 in the accumulation period of the data transmission period, so that the tablet 30 can be multi-functional without trouble. In addition, since there is no need to assign a unique frequency to each tablet 30 and each answer clicker 40, the data presentation device 20, the tablet 30, and each answer clicker are secured after ensuring data transmission for each answer clicker 40. Interference in wireless transmission of data with 40 can also be prevented.

  Further, in the material presentation system 10 of the present embodiment, among the answer buttons 144 that are initially notified to the students in blue lighting as answer candidates in the respective answer clickers 40, the answer buttons 144 that are actually operated by the students are displayed as initial answers. Differentiated lighting is performed in red of a color different from lighting (FIG. 10: step S330S). Therefore, the student can recognize which answer button 144 he / she operated, even after the operation, so as not to forget it.

  Further, in the material presentation system 10 of the present embodiment, the correct answer option for the question is set through the operation of the tablet 30 by the teacher (FIG. 11: step S410T), and the set correct answer option is specified. The correct answer option specifying data is wirelessly transmitted to the transmission / reception unit 29 of the material presentation device 20 by the transmission / reception unit 360 (FIG. 11: step S420T). The answer clicker 40 receives the correct answer specifying data from the transmission / reception unit 29 of the material presentation device 20 functioning as a relay station (FIG. 11: step S410TS). Then, the answer clicker 40 determines that the answer button 144 that is actually operated by the student among the answer buttons 144 that are initially informed in blue light matches the answer button 144 that is specified by the correct answer option specifying data received by the student. The answer button 144 that has actually been operated is lit in orange to be distinguished from the other answer buttons 144 (FIG. 11: Step S430TS). Therefore, the student who operates the answer clicker 40 has selected that the answer button 144 that he / she has operated is the answer button 144 corresponding to the correct answer option for the question, in other words, has selected the correct answer option, Can recognize that has answered the correct answer. That is, according to the material presentation system 10 of the present embodiment, it is possible to increase the motivation of the student and to give the student a sense of achievement.

  Further, in the material presentation system 10 of the present embodiment, each of the answer clickers 40 has a top indicator lamp 440 inside the colored translucent top light emitting section 42, and the answer button 144 is a red candidate. When any of the answer buttons 144 initially notified at is operated by the student, the top indicator lamp 440 is initially turned on (FIG. 10: Step S340S). Therefore, according to the material presentation system 10 of the present embodiment, the teacher can recognize the student who has answered the question by the light emitted from the top indicator lamp 440 of the answering machine operated by the student. .

  Further, in the material presentation system 10 according to the present embodiment, the student can grasp which answer button 144 is actually pressed by the student as follows. First, the teacher operates the answer candidate option setting switch 134e of the tablet 30 to set the answer button 144 corresponding to the answer candidate option (the grasp target option) to be grasped (FIG. 12: Step S510T). The tablet 30 wirelessly transmits the correct option specifying data specifying the set grasp target option to the transmitting / receiving unit 29 of the material presentation device 20 by the transmitting / receiving unit 360 (FIG. 12: step S520T). The answer clicker 40 receives the grasp target option specifying data from the transmission / reception unit 29 of the material presentation device 20 functioning as a relay station (FIG. 12: step S510TS). Then, the answer clicker 40, when the answer button 144 that is actually operated by the student among the answer buttons 144 that are initially informed in blue, matches the answer button 144 that is specified by the grasp target option specifying data that is received, The indicator lamp 440 is turned on (FIG. 12: Step S530S). As a result, the teacher can recognize which of the answer candidate options set for the question (the grasp target option) which student has selected by lighting the top indicator lamp 440. Since the teacher visually recognizes the answer clicker 40 in which the top indicator light 440 is actually lit, the teacher can visually recognize the face, facial expression, gesture, and the like of the student who has operated the lit answer clicker 40. Therefore, according to the material presentation system 10 of the present embodiment, it is possible to recognize the student's degree of understanding together with facial expressions and the like.

  In this case, in the material presentation system 10 of the present embodiment, the top indicator light 440 is turned on in a blinking lighting mode different from the initial lighting, so which student selects the answer (answer button 144) corresponding to the grasped option. It is possible to increase the cognition of whether or not

  Although the embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and can be implemented in various modes without departing from the scope of the present invention. FIG. 15 is an explanatory diagram for explaining the system configuration of the material presentation system 10 of the material presentation system 10 according to the modification, and FIG. 16 is a block diagram for explaining the internal configuration of the tablet 30 according to the modification.

  As shown in FIG. 15, in the material presentation system 10 according to this modification, the captured image of the material presentation device 20 is displayed on the tablet operation unit 34 of the tablet 30, and the composite image is also displayed on the tablet operation unit 34. Display is possible. In order to enable such composite image display, the tablet 30 includes a captured image buffer 341 and a composite image buffer 344 in the RAM 340 as shown in FIG. The tablet 30 receives the captured image data of the imaging area RA from the material presentation device 20 from the transmission / reception unit 360 and stores it in the captured image buffer 341. Then, the tablet 30 displays the captured image of the material presentation device 20 on the tablet operation unit 34 through the operation of the drawing switch 132 by the teacher. After that, the drawing of the teacher using the tablet pen Pn is accepted, and the drawing locus data indicating the drawn drawing locus is wirelessly transmitted to the material presentation device 20 as described above, and also to the composite image buffer 344. The captured image data and the drawing trajectory data are combined and stored, and an image based on the stored data is displayed on the tablet operation unit 34 as a combined image.

  According to the material presentation system 10 of this modified example, when the drawing trajectory when the teacher performs a drawing operation using the tablet 30 is involved in the question, the teacher is drawn on the tablet operation unit 34 of the tablet 30 at hand. Since the image can be drawn on the captured image, versatility can be enhanced and convenience is also improved. Even in this modification, as described above, the tablet 30 is made multifunctional so that it has both the drawing function and the composite image function by ensuring the accumulation of the data transmission period from the tablet 30 to the material presentation device 20. Can be realized without hindrance.

  In the above-described embodiment, every time a transmission permission signal is transmitted to the transmission / reception unit 430 of one answer clicker 40, the transmission permission signal is transmitted to the transmission / reception unit 360 of the tablet 30. It is only necessary to increase the transmission frequency of the permission signal to ensure the accumulation of the data transmission time from the tablet 30. For example, every time a transmission permission signal is transmitted to the transmission / reception unit 430 of the two answer clickers 40, the transmission / reception unit 360 of the tablet 30 It is also possible to transmit a transmission permission signal.

  In addition, the following modifications are possible. In the embodiment, the material presentation device 20 shown in FIG. 1 is adopted as the material presentation device, but material presentation devices having various configurations can be employed. For example, a table to which a document table on which a document RS is placed is added, or a display device (for example, a projector) that displays a captured image is integrated. Further, a configuration in which the mounting portion of the camera head 26 shown in FIG. 1 rotates around the axis, a configuration in which the support column 24 rotates around two axes, or a configuration in which the support column 24 rotates around the axis is adopted. It is also possible.

  Moreover, although the tablet operation part 34 of the tablet 30 was comprised using the liquid crystal panel, an organic electroluminescent panel, electronic paper, etc. can also be used. Furthermore, although the tablet operation unit 34 is a projected capacitive touch panel, other methods such as a resistive film method, a surface acoustic wave method, an electromagnetic induction method, and an image analysis method may be employed. For example, in the resistive film method, resistance is applied to one of the two transparent electrodes used in the tablet 30, and a voltage is applied to one of the two transparent electrodes facing each other. When both electrodes come into contact with each other by the teacher's operation, the position of the conductive portion of both electrodes is detected by voltage. As described above, various touch panel methods can be employed.

  In addition, although the television 50 is used as an image display device for displaying an image, the present invention is not limited to this, and other image display devices such as a projector and a liquid crystal display may be used. Even if it does in this way, the effect similar to the said Example can be acquired.

  In this embodiment, the teacher's drawing action in the tablet operation unit 34 of the tablet 30 is related to the answer candidate options for the question. However, the question sentence itself can be drawn on the tablet operation unit 34. In this case, the text data generated by using the question sentence data as the drawing trajectory data or through the data conversion is transmitted from the tablet 30 to the material presentation device 20 as described above. Then, the question sentence can be displayed on the television 50 by the material presentation device 20 and presented to the students. In this way, the teacher who is the questioner can create questions themselves asking questions about the degree of understanding of the students and present the captured images and the questions to the students on the spot. Such question sentence creation and data transmission / display in the tablet operation unit 34 may be performed before setting of answer candidate options (step S210T) shown in FIG. Then, the question text can be combined with the captured image and displayed, or the display area of the television 50 can be divided into two, the question text can be displayed on one side, and the captured image can be displayed on the other side.

DESCRIPTION OF SYMBOLS 10 ... Material presentation system 20 ... Material presentation apparatus 22 ... Main body 23 ... Operation part 24 ... Support | pillar 26 ... Camera head 27 ... Zoom dial 29 ... Transmission / reception part 30 ... Tablet 31 ... Power switch 32 ... Sound collection microphone 33 ... Power light 34 ... tablet operation unit 40 (40_1 to 40_i) ... answer clicker 41 ... power switch 42 ... top light emitting unit 43 ... power light 50 ... TV 130 ... function selector switch group 131 ... camera switch 132 ... drawing switch 133 ... file open switch 134 ... Clicker instruction switch 134a ... Answer start instruction switch 134b ... Answer end instruction switch 134c ... Answer status display switch 134d ... Answer status confirmation switch 134e (134e_1 to 134e_6) ... Answer candidate option setting switch 134f ... Yes / No setting switch 35 ... Save switch 136 ... Maintenance switch 137 ... Use lock switch 144 (144_1 to 144_6) ... Answer button 145 ... Yes button 146 ... No button 147 ... Switch contact 148 ... Button emission lamp 210 ... Imaging unit 212 ... Lens unit 220 ... Image Processing unit 230 ... CPU
232 ... Tablet driver 233 ... Display output unit 234 ... Data analysis processing unit 236 ... Image composition unit 238 ... Audio input / output unit 240 ... RAM
241 ... Captured image buffer 242 ... Reception block buffer 243 ... Rendered image buffer 244 ... Composite image buffer 250 ... HDD
260 ... ROM
272 ... Digital data output IF
274 ... Analog data output IF
276 ... USB interface 310 ... Touch panel 312 ... Position / press detection unit 314 ... Character / image display unit 330 ... CPU
331 ... Drawing processing unit 332 ... Data generation / processing unit 333 ... Audio conversion output unit 340 ... RAM
341 ... Captured image buffer 342 ... Drawing data buffer 343 ... Drawing image buffer 344 ... Composite image buffer 350 ... ROM
360 ... Transmission / reception unit 410 ... CPU
412 ... Data generation / analysis processing unit 414 ... Lighting control unit 420 ... ROM
430 ... Transmission / reception unit 440 ... Top indicator lamp RA ... Imaging area RS ... Document IS ... Display image Pn ... Pen for tablet

Claims (3)

A document presentation system for exchanging with an audience while presenting a captured image obtained by capturing a document with a camera,
A material presentation device for performing data radio transmission / reception in a radio communication control unit while performing data imaging by the camera and image output of the captured image to an image display device visible to the audience; The material presentation device includes the wireless communication control unit having a specific slave unit operated by a questioner who performs a response, and an answer slave unit for each audience operated when the audience answers the question As a relay station, ready to send and receive data wirelessly,
The specific slave unit is involved in wireless transmission / reception of data with the wireless communication control unit of the material presentation device, and when receiving transmission permission from the wireless communication control unit, a predetermined time after receiving the transmission permission A specific slave unit transmitting and receiving unit for wirelessly transmitting data to the wireless communication control unit in the data transmission period of
Each of the answering slaves is involved in wireless transmission / reception of data with the wireless communication control unit of the material presentation device, and when receiving transmission permission from the wireless communication control unit, after receiving the transmission permission An answering device transceiver unit for wirelessly transmitting data to the wireless communication control unit during the data transmission period of
The wireless communication control unit of the material presentation device is configured to transmit the transmission permission to the specific child device transmission / reception unit at a frequency higher than the transmission frequency of the transmission permission to the answering device transmission / reception unit of each answering child device. A material presentation system for transmitting to the specific handset transceiver unit.   The wireless communication control unit of the material presentation device sequentially transmits the transmission permission to the answering device transmission / reception unit of each answering device, and the answering device transmission / reception unit of one answering device receives the transmission permission. The material presentation system according to claim 1, wherein each time transmission permission is transmitted, the transmission permission is transmitted to the specific handset transceiver unit. The material presentation system according to claim 1 or 2,
The specific slave unit is configured as a tablet terminal, and drawing trajectory data indicating a drawing trajectory when the questioner performs a drawing operation using the specific slave unit as the tablet terminal is transmitted from the wireless communication control unit. Each time permission is received, it is transmitted from the specific handset transceiver to the material presentation device,
The material presentation device that has received the information on the drawing operation outputs a composite image obtained by superimposing a drawing image corresponding to the drawing trajectory data on the captured image of the camera to the image display device.

Images